Transport vehicle

Abstract

The utility model discloses a transport vehicle which comprises a cab, a pallet and a movable plate. The cab is provided with an operating platform; the pallet is connected to the rear end of the cab, and a wheel assembly is arranged below the pallet. The movable plate is movably arranged on the pallet, the movable plate is provided with a first abutting part and a second abutting part which protrude upwards, the first abutting part and the second abutting part are spaced in the length direction of the movable plate, the first abutting part is located between the second abutting part and the cab, and a containing groove is formed in the gap between the first abutting part and the second abutting part. The movable plate is connected with a driving part and has a first position and a second position, the operating table is connected with the driving part so that the driving part can be controlled by the operating table to drive the movable plate to move between the first position and the second position, the movable plate is parallel to the pallet at the first position, and the movable plate inclines upwards in the direction from the second abutting part to the first abutting part at the second position. According to the technical scheme, the transport vehicle can reduce potential safety hazards when the duct pieces are transported.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction materials technology, and in particular to a transport vehicle. Background Technology

[0002] With the country's vigorous construction of water and railway networks, tunnel projects are becoming increasingly common. Tunnel boring machines (TBMs), as the most advanced complete set of equipment for large-scale underground tunnel excavation and lining, are being used more and more widely in tunnel projects. Their matching lining segments are also widely used due to their rapid assembly installation and use.

[0003] In long-distance tunnel engineering, multiple adits are often required to enable simultaneous operation of multiple work faces. TBM-excavated adits are typically long, downhill sections with gradients ranging from 5% to 9%. As excavation progresses, long downhill sections of 1 to 2 km sometimes appear, posing significant safety hazards for segment transportation. During segment transportation, the gradient can cause the transport vehicle to tilt, especially when segments are stacked, posing a serious safety risk. To mitigate these risks, the stacking height of segments is often reduced, decreasing the capacity of the double-headed transport vehicle. However, this severely impacts the rapid construction progress of the TBM. Utility Model Content

[0004] The main purpose of this utility model is to propose a transport vehicle that aims to reduce safety hazards during the transport of tunnel segments.

[0005] To achieve the above objectives, the present invention provides a transport vehicle comprising:

[0006] The driver's cab is equipped with a control panel;

[0007] A cargo bed is connected to the rear end of the cab, and a wheel assembly is located below the cargo bed;

[0008] A movable plate is movably mounted on the cargo plate. The movable plate has an upwardly protruding first abutment and a second abutment. The first abutment and the second abutment are spaced apart along the length of the movable plate. The first abutment is located between the second abutment and the cab. The gap between the first abutment and the second abutment forms a placement groove. The movable plate is connected to a driving member and has a first position and a second position. An operating table is connected to the driving member to control the driving member to move the movable plate in the first position and the second position. In the first position, the movable plate is parallel to the cargo plate. In the second position, the movable plate is tilted upward in the direction from the second abutment to the first abutment.

[0009] Optionally, the cargo platform is provided with an installation space, the installation space is matched with the shape of the movable plate, and the inner side of the installation space away from the cab is provided with a rotating shaft. The movable plate is rotatably installed in the installation space via the rotating shaft. In the first position, the movable plate is fitted into the installation space.

[0010] Optionally, the driving component is a hydraulic cylinder, one end of which is connected to the cargo plate and the other end to the movable plate. The hydraulic cylinder controls the movement of the movable plate between the first position and the second position by extending and retracting.

[0011] Optionally, two hydraulic cylinders are provided between the movable plate and the cargo plate, and the two hydraulic cylinders are spaced apart along the width direction of the movable plate.

[0012] Optionally, the installation space includes two strip holes and a connecting groove. The two strip holes penetrate the cargo plate in the vertical direction and extend along the length of the cargo plate. The connecting groove is located between the two strip holes and connects the two strip holes. The movable plate includes two strip plates and a connecting plate. The connecting plate is connected between the two strip plates. In the first position, the two strip plates are located in the two strip holes respectively, and the connecting plate is placed in the connecting groove.

[0013] Optionally, a plurality of support blocks are provided under the cargo plate, with each pair of support blocks corresponding to both sides of the strip hole, and a support shaft is provided between the two corresponding support blocks, with the lower end of the hydraulic cylinder rotatably mounted on the support shaft.

[0014] Optionally, the movable plate is provided with a mounting groove at the lower end of each of the first abutment portions, and a hinge shaft is provided in the mounting groove. The upper end of the hydraulic cylinder is rotatably mounted on the hinge shaft.

[0015] Optionally, the transport vehicle is equipped with an electronic control device and an attitude sensor. The attitude sensor and the hydraulic cylinder are both connected to the electronic control device, and the attitude sensor is used to detect changes in the attitude of the cargo plate.

[0016] Optionally, a wedge-shaped rubber pad is provided at the upper end of both the first abutting part and the second abutting part.

[0017] Optionally, the transport vehicle is equipped with an electronic control device and a pressure sensor. The pressure sensor and the hydraulic cylinder are both connected to the electronic control device. There are multiple pressure sensors, each corresponding to a multiple wedge-shaped rubber pads, used to detect pressure changes of the load on the wedge-shaped rubber pads.

[0018] Optionally, the number of movable plates is set according to the length of the cargo pallet, and the number of movable plates is at least two.

[0019] Optionally, the transport vehicle is also equipped with a return cab, which is located at the end of the cargo platform away from the cab, so that the transport vehicle does not need to turn around when returning.

[0020] This utility model's technical solution involves connecting a cargo platform to the rear of the cab and installing a movable plate on the cargo platform. The movable plate has an upward-protruding first abutment and a second abutment. The first abutment is located between the second abutment and the cab, and the gap between the first and second abutments forms a placement groove. Pipe segments can be stacked in the placement groove, and the first and second abutments abut against the underside of the pipe segments, reducing the possibility of slippage when the transport vehicle experiences bumps. Additionally, the cab has an operating console, and the movable plate is connected to a drive mechanism controlled by the console. When the transport vehicle travels on a long downhill section, the driver in the cab can control the console to move the movable plate from a first position to a second position, adjusting the tilt angle of the movable plate and the placement groove to match the slope. The movable plate lifts one end of the pipe segment, maintaining a horizontal or slightly negative angle posture on long downhill sections. This prevents the pipe segments from slipping or tipping forward due to inertia when the transport vehicle brakes or is impacted, thus endangering the safety of personnel in the cab. This reduces the safety hazards when transporting pipe segments by transport vehicles. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the transport vehicle of this utility model;

[0023] Figure 2 for Figure 1 A schematic diagram showing the movement of the movable plate of the transport vehicle from the first position to the second position when it is going downhill.

[0024] Figure 3 for Figure 2 Structural diagram of the pallet and movable pallet;

[0025] Figure 4 for Figure 3 A structural schematic diagram of the cargo pallet and movable pallet from another perspective;

[0026] Figure 5 for Figure 3A schematic diagram of the structure where the movable plate moves to the first position.

[0027] Reference numerals: 10. Cab; 20. Cargo bed; 21. Wheel assembly; 22. Strip hole; 23. Connecting groove; 30. Movable plate; 31. First abutment part; 32. Second abutment part; 33. Rubber block; 34. Strip plate; 35. Connecting plate; 36. Support block; 37. Mounting groove; 38. Support shaft; 40. Hydraulic cylinder; 50. Return cab; 60. Segment;

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] This utility model proposes a transport vehicle for transporting lining segments used in tunnel engineering.

[0033] In the embodiments of this utility model, such as Figures 1 to 5As shown, the transport vehicle includes a cab 10, a cargo platform 20, and a movable platform 30. The cab 10 is equipped with an operating table. The cargo platform 20 is connected to the rear end of the cab 10, and a wheel assembly 21 is provided below the cargo platform 20. The movable platform 30 is movably disposed on the cargo platform 20. The movable platform 30 has an upwardly protruding first abutment portion 31 and abutment portion 32. The first abutment portion 31 and the second abutment portion 32 are spaced apart along the length direction of the movable platform 30. The first abutment portion 31 is located between the second abutment portion 32 and the cab 10. The gap between the first abutment portion 31 and the second abutment portion 32 forms a placement groove. The movable platform 30 is connected to a driving member and has a first position and a second position. The operating table is connected to the driving member so that the driving member can be controlled by the operating table to drive the movable platform 30 to move in the first position and the second position. In the first position, the movable platform 30 is parallel to the cargo platform 20. In the second position, the movable platform 30 is tilted upward in the direction from the second abutment portion 32 to the first abutment portion 31.

[0034] Specifically, during transport, multiple segments 60 are stacked in the placement trough. The first abutment part 31 and the second abutment part 32 limit the segments 60, making the stacking of segments 60 relatively stable. When the transport vehicle travels to a long downhill section, in order to prevent the movable plate 30 from tilting horizontally and causing the segments 60 in the placement trough to slip, the driver in the cab 10 can control the control panel to drive the movable plate 30 from the first position to the second position. This allows the movable plate 30 and the placement trough to move to a tilt angle that matches the slope. The movable plate 30 lifts one end of the segment 60, so that the segment 60 maintains a horizontal or slightly negative angle posture on long downhill sections. This prevents the segments 60 from sliding forward or tilting due to inertia when the transport vehicle brakes or is impacted, thus endangering the safety of the personnel in the cab 10.

[0035] The present invention connects the cargo platform 20 to the rear end of the cab 10, and provides a movable plate 30 on the cargo platform 20. The movable plate 30 has an upwardly protruding first abutment 31 and abutment 32. The first abutment 31 is located between the second abutment 32 and the cab 10. The gap between the first abutment 31 and the second abutment 32 forms a placement groove, which can be used to stack the pipe segments 60 in the placement groove. At the same time, the first abutment 31 and the second abutment 32 abut against the bottom of the pipe segments 60, reducing the possibility of the pipe segments 60 slipping when the transport vehicle is bumpy. In addition, the cab 10 is equipped with an operating console, and the movable plate 30 is connected to a drive unit controlled by the operating console. When the transport vehicle travels on a long downhill section, the driver in the cab 10 can control the operating console to move the movable plate 30 from a first position to a second position. This allows the movable plate 30 and the placement trough to move to an angle that matches the slope. The movable plate 30 lifts one end of the tunnel segment 60, ensuring that the tunnel segment 60 remains horizontal or at a slightly negative angle on long downhill sections. This prevents the tunnel segment 60 from sliding forward or tipping over due to inertia when the transport vehicle brakes or is impacted, thus endangering the safety of personnel in the cab 10. This reduces the safety hazards when transporting the tunnel segment 60.

[0036] In some embodiments, the cargo platform 20 is provided with an installation space that matches the shape of the movable plate 30. A rotating shaft is located on the inner side of the installation space away from the cab 10. The movable plate 30 is rotatably mounted in the installation space via the rotating shaft. In a first position, the movable plate 30 is fitted into the installation space. Specifically, the installation space matches the shape of the movable plate 30 so that the movable plate 30 is completely fitted into the cargo platform 20 in the first position, forming a flat transport surface. This avoids interference from protruding structures on the loading of the tunnel segments 60. Furthermore, the fitted design of the movable plate 30 allows the cargo platform 20 to maintain a complete load-bearing surface on non-downhill sections, enabling the simultaneous transport of other tunnel construction equipment.

[0037] In some embodiments, the driving component is a hydraulic cylinder 40, with one end connected to the cargo plate 20 and the other end connected to the movable plate 30. The hydraulic cylinder 40 controls the movement of the movable plate 30 in a first position and a second position through extension and retraction. Specifically, this allows for precise control of the tilt angle of the movable plate 30 through the extension and retraction of the hydraulic cylinder 40. Furthermore, compared to other driving structures, the hydraulic cylinder 40 provides greater thrust, and in the second position, it stably supports the movable plate 30 carrying the tube segment 60. Alternatively, in other embodiments, the driving component can be a pneumatic cylinder or an electric cylinder.

[0038] In some embodiments, two hydraulic cylinders 40 are provided between the movable plate 30 and the cargo plate 20, with the two hydraulic cylinders 40 spaced apart along the width direction of the movable plate 30. Specifically, the dual-cylinder structure forms a symmetrical support system in the width direction, which can provide more stable support. Moreover, when the transport vehicle passes through a curved downhill section, the two hydraulic cylinders 40 can compensate for the different centrifugal forces on both sides, reducing the risk of damage to a single hydraulic cylinder 40.

[0039] In some embodiments, the installation space includes two slotted holes 22 and a connecting groove 23. The two slotted holes 22 penetrate the cargo plate 20 in the vertical direction and extend along the length of the cargo plate 20. The connecting groove 23 is located between the two slotted holes 22 and connects the two slotted holes 22. The movable plate 30 includes two strip plates 34 and a connecting plate 35. The connecting plate 35 is connected between the two strip plates 34. In a first position, the two strip plates 34 are correspondingly located within the two slotted holes 22, and the connecting plate 35 is placed within the connecting groove 23. Specifically, when the movable plate 30 is in the first position, the two strip plates 34 are fully embedded in the slotted holes 22, and the connecting plate 35 is placed within the connecting groove 23. The entire movable plate 30 is flush with the surface of the cargo plate 20, forming a continuous and flat transport surface. This not only facilitates the smooth loading and transport of the segments 60 but also avoids potential damage to the segments 60 caused by the protruding structure of the movable plate 30. Furthermore, in the first position, the weight of the tube segment 60 placed in the groove is transmitted to the bottom wall of the connecting groove 23 through the connecting plate 35, thus avoiding potential damage due to stress concentration at the connection point between the movable plate 30 and the cargo plate 20.

[0040] In some embodiments, a plurality of support blocks 36 are provided under the cargo plate 20, with each pair of support blocks 36 corresponding to both sides of the strip hole 22. A support shaft 38 is provided between two corresponding support blocks 36, and the lower end of the hydraulic cylinder 40 is rotatably mounted on the support shaft 38. Specifically, this avoids a rigid connection between the hydraulic cylinder 40 and the cargo plate 20, allowing the hydraulic cylinder 40 to move relative to the cargo plate 20. The lower end of the hydraulic cylinder 40 is rotatably mounted on the support shaft 38, providing a precise rotation fulcrum for the extension and retraction of the hydraulic cylinder 40. When the driver operates the hydraulic cylinder 40 to adjust the angle of the movable plate 30, the lower fulcrum of the hydraulic cylinder 40 is stable and rotates flexibly, allowing for more precise control of the tilt angle of the movable plate 30. This enables the movable plate 30 to more accurately match the slope when adjusting its tilt angle on long downhill sections, better achieving the goal of keeping the segment 60 horizontal or with a slight negative angle, effectively improving the stability of the segment 60 during transportation.

[0041] In some embodiments, the movable plate 30 has a mounting groove 37 at the lower end corresponding to each first abutment portion 31, and a hinge shaft is provided in the mounting groove 37. The upper end of the hydraulic cylinder 40 is rotatably mounted on the hinge shaft. Specifically, a mounting groove 37 is provided at the lower end of the movable plate 30 corresponding to each first abutment portion 31, and a hinge shaft is installed therein, so that the upper end of the hydraulic cylinder 40 can be rotatably mounted on the hinge shaft. Compared with a rigid connection, when the movable plate 30 tilts, the hydraulic cylinder 40 can flexibly adjust its angle as the movable plate 30 rotates, better adapting to the positional changes of the movable plate 30 at different tilt angles, thereby ensuring that the hydraulic cylinder 40 can smoothly provide a stable thrust to the movable plate 30 throughout the entire working process. Moreover, since the upper part of the hydraulic cylinder 40 is located inside the mounting groove 37, it avoids occupying additional space outside the movable plate 30, achieving efficient utilization of internal space.

[0042] In some embodiments, the transport vehicle is equipped with an electronic control device and an attitude sensor. Both the attitude sensor and the hydraulic cylinder 40 are connected to the electronic control device. The attitude sensor is used to detect changes in the attitude of the cargo platform 20. Specifically, the attitude sensor can detect changes in the attitude of the cargo platform 20 in real time. Whether the vehicle is traveling on a flat road, climbing a slope, going down a slope, or turning, any slight change in the attitude of the cargo platform 20 can be captured by the sensor. After receiving the attitude data of the cargo platform 20 from the attitude sensor, the electronic control device will immediately analyze and process it. If it is determined that the change in the attitude of the cargo platform 20 exceeds the allowable range for safe transportation of the tunnel segment 60, the electronic control device will automatically send a command to the hydraulic cylinder 40 to adjust its extension length. Moreover, manual operation carries the risk of delayed response. Compared with manual control by the driver, this method has a faster response speed and more precise adjustment, effectively avoiding safety accidents that may be caused by the slippage or tipping of the tunnel segment 60, and protecting the lives of the driver and construction site personnel.

[0043] In some embodiments, wedge-shaped rubber pads are correspondingly provided at the upper ends of both the first abutment portion 31 and the second abutment portion 32. Specifically, the surface of the wedge-shaped rubber pad has a large frictional force, and when the tube 60 is placed in the placement groove between the first abutment portion 31 and the second abutment portion 32, the rubber pad is in close contact with the bottom surface of the tube 60. During transportation, the bumps, acceleration, and deceleration generated by vehicle movement can easily cause the tube 60 to tend to slide relative to itself. However, the wedge-shaped rubber pad, with its high frictional characteristics, can effectively prevent the tube 60 from sliding, ensuring that the tube 60 remains stable in the placement groove. Moreover, the rubber pad material is relatively soft, and even if there is a slight displacement between the tube 60 and the abutment portion during vehicle movement, the rubber pad can effectively prevent the surface of the tube 60 from being worn due to scratches.

[0044] In some embodiments, the transport vehicle is equipped with an electronic control device and pressure sensors. Both the pressure sensors and the hydraulic cylinder 40 are connected to the electronic control device. Multiple pressure sensors are used, each corresponding to a different wedge-shaped rubber pad, to detect pressure changes on the wedge-shaped rubber pads under load. Specifically, multiple pressure sensors correspond to multiple wedge-shaped rubber pads, enabling real-time, all-around sensing of the load pressure changes borne by each wedge-shaped rubber pad. After receiving the pressure change data from the pressure sensors, the electronic control device analyzes it according to a preset algorithm and safety thresholds. If the pressure on one or more wedge-shaped rubber pads exceeds the normal range, the electronic control device automatically sends a command to the hydraulic cylinder 40 to adjust its extension / retraction state. Through the coordinated work of the pressure sensors, the electronic control device, and the hydraulic cylinder 40, the transport vehicle can automatically adapt to different transport conditions and the loading status of the tunnel segments 60. Furthermore, manual operation carries the risk of delayed response. Compared to manual control by the driver, this method offers faster response and more precise adjustment, effectively preventing safety accidents that may be caused by slippage or tipping of the tunnel segments 60, and protecting the lives of the driver and on-site personnel.

[0045] In some embodiments, the number of movable plates 30 is set according to the length of the pallet 20, and the number of movable plates 30 is at least two. Specifically, two movable plates 30 can carry more segments 60, thereby improving the transportation efficiency of the transport vehicle. It is worth noting that the number and length of the pallet 20, and the length and number of the movable plates 30, can be set according to the specific transportation environment.

[0046] In some embodiments, the transport vehicle is further equipped with a return cab 50, located at the end of the cargo platform 20 away from the cab 10, so that the transport vehicle does not need to turn around when returning. Specifically, the space inside the tunnel is usually narrow, making it difficult and time-consuming for the transport vehicle to turn around. With the return cab 50 installed, after the transport vehicle has completed the transport of the tunnel segment 60 to its destination, there is no need for a complicated turning maneuver; the driver can directly enter the return cab 50 and drive the vehicle back. This change can significantly save time during the transportation process, especially in scenarios involving frequent round trips to transport the tunnel segment 60. Each transport can reduce the turning time by several minutes or even longer, significantly improving overall transportation efficiency and accelerating the construction progress of the tunnel project.

[0047] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A transport vehicle for transporting lining segments used in tunnel engineering, characterized in that, include: The driver's cab is equipped with a control panel; A cargo bed is connected to the rear end of the cab, and a wheel assembly is located below the cargo bed; A movable plate is movably mounted on the cargo plate. The movable plate has an upwardly protruding first abutment and a second abutment. The first abutment and the second abutment are spaced apart along the length of the movable plate. The first abutment is located between the second abutment and the cab. The gap between the first abutment and the second abutment forms a placement groove. The movable plate is connected to a driving member and has a first position and a second position. An operating table is connected to the driving member to control the driving member to move the movable plate in the first position and the second position. In the first position, the movable plate is parallel to the cargo plate. In the second position, the movable plate is tilted upward in the direction from the second abutment to the first abutment.

2. The transport vehicle as described in claim 1, characterized in that, The cargo platform has an installation space that matches the shape of the movable plate. The installation space has a rotating shaft on its inner side away from the cab. The movable plate is rotatably installed in the installation space via the rotating shaft. In the first position, the movable plate is fitted into the installation space.

3. The transport vehicle as described in claim 2, characterized in that, The driving component is a hydraulic cylinder, one end of which is connected to the cargo plate and the other end to the movable plate. The hydraulic cylinder controls the movement of the movable plate in the first position and the second position by extending and retracting.

4. The transport vehicle as described in claim 3, characterized in that, Two hydraulic cylinders are provided between the movable plate and the cargo plate, and the two hydraulic cylinders are spaced apart along the width direction of the movable plate.

5. The transport vehicle as described in claim 4, characterized in that, The installation space includes two strip holes and a connecting groove. The two strip holes penetrate the cargo plate in the vertical direction and extend along the length of the cargo plate. The connecting groove is located between the two strip holes and connects the two strip holes. The movable plate includes two strip plates and a connecting plate. The connecting plate is connected between the two strip plates. In the first position, the two strip plates are located in the two strip holes respectively, and the connecting plate is placed in the connecting groove.

6. The transport vehicle as described in claim 5, characterized in that, The cargo plate is provided with multiple support blocks on its underside. Each pair of support blocks is positioned on both sides of the strip-shaped hole, and a support shaft is provided between the two corresponding support blocks. The lower end of the hydraulic cylinder is rotatably mounted on the support shaft.

7. The transport vehicle as described in claim 6, characterized in that, The movable plate has a mounting groove at the lower end of each of the first abutment parts, and a hinge shaft is provided in the mounting groove. The upper end of the hydraulic cylinder is rotatably mounted on the hinge shaft.

8. The transport vehicle as described in claim 3, characterized in that, The transport vehicle is equipped with an electronic control device and an attitude sensor. The attitude sensor and the hydraulic cylinder are both connected to the electronic control device. The attitude sensor is used to detect changes in the attitude of the cargo pallet.

9. The transport vehicle as described in claim 3, characterized in that, Both the first abutting part and the second abutting part have corresponding wedge-shaped rubber pads at their upper ends.

10. The transport vehicle as described in claim 9, characterized in that, The transport vehicle is equipped with an electronic control device and a pressure sensor. The pressure sensor and the hydraulic cylinder are both connected to the electronic control device. There are multiple pressure sensors, each corresponding to a multiple wedge-shaped rubber pads, used to detect pressure changes of the load on the wedge-shaped rubber pads.

11. The transport vehicle as described in claim 1, characterized in that, The number of movable boards is set according to the length of the cargo board, and the number of movable boards is at least two.

12. The transport vehicle as described in claim 1, characterized in that, The transport vehicle is also equipped with a return cab, which is located at the end of the cargo platform away from the cab, so that the transport vehicle does not need to turn around when returning.

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